Simultaneous para-ferrimagnetic, metal-insulator, and orthorhombic-monoclinic transitions in YBaCo2O5.50
Ultrahigh resolution synchrotron x-ray powder diffraction shows up two structural transitions in the layered cobaltite YBaCo2O5.50. The room-temperature orthorhombic structure transforms, on cooling below TMI≃295 K, to monoclinic coinciding with the apparition of a ferromagnetic moment and the occur...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2010 |
| País: | España |
| Recursos: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/118702 |
| Acesso em linha: | https://hdl.handle.net/2445/118702 |
| Access Level: | acceso abierto |
| Palavra-chave: | Cobalt Ferromagnetisme Metalls de transició Ferromagnetism Transition metals |
| Resumo: | Ultrahigh resolution synchrotron x-ray powder diffraction shows up two structural transitions in the layered cobaltite YBaCo2O5.50. The room-temperature orthorhombic structure transforms, on cooling below TMI≃295 K, to monoclinic coinciding with the apparition of a ferromagnetic moment and the occurrence of the metal to insulator transition. On further cooling, the ferromagnetic component disappears and orthorhombic symmetry is recovered. |
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